Electric switch.



No. 769,698. PATENTED SEPT. 18, 1904. J. G. KELLER & O. F. KADOW.

ELECTRIC SWITCH.

APPLICATION FILED JUNE 10, 1903 N0 MODEL. 8 2 SHBETSSHEET 1.

WITNESSES:

\, INVENTORS 2mm /e./5M

9% ATTORNEY No. 769,698. PATENTED SEPT. 13, 1904. J. C. KELLER & O. P.KADOW.

ELECTRIC SWITCH.

APPLIOATION FILED JUNE 10. 1903.

no MODEL. 2 sums-sum 2.

WITNESSES: INVENTORS Ffiu ATTORNEY Patented September 13, 1904.

UNITED STATES PATENT OFFICE.

JAMES C. KELLER AND OTTO F. KADOIV, OF CLEVELAND, OHIO.

ELECTRIC SWITCH.

SPECIFICATION forming part of Letters Patent No. 769,698, datedSeptember 13, 1904.

Application filed June 10, 1903.

To all whom it ntay concern;

Be it known that we, JAMES C. KELLER and Or'ro F. KADow, citizens of theUnited States, and residents of the city of Cleveland, in the county ofOuyahoga and State of Ohio, have invented certain new and usefulImprovements in Electric Switches, of which the following is aspecification.

Our invention relates to electric railwayswitches; and its noveltyconsists in the means employed to actuate the track-switch and secureits assured and safe return to its normal position after such actuation.

The switch-tongue is moved either from the car or from any othersuitable location by the closing of an electric circuit.

In the drawings, Figure l is a diagram of certain parts of the devicewhen it is adapted to be operated from a car. Fig. 2 is a side elevationof the trolley-pole and a part of the top of the car. Fig. 3 is aperspective of a part of the track-switch and operating mech-, anism andthe box containing the latter. Fig. at is a side elevation and partialdiagram of the switch-operating mechanism in its normal position, andFig. 5 is a similar view of the same parts after the electromagnet hasbeen energized to move the switch lever and tongue. Fig. 6 is anenlarged perspective view of the electromagnet andswitch-tongueoperating device.

In the drawings, 10 is a portion of railwaytrack, and 11 is aturnout-rail.

12 is a switch-tongue hinged on a pivot 13 and adapted to be swungthereon horizontally in the usual manner.

20 is an electromagnet consisting of a core made of two members 21 and22, connected together by a hinge and which is wound with a suitableelectric conductor 24 24: in the usual manner. The electromagnet 20 isshown as situated in a box or receptacle 30, placed in a suitable cavitybeneath the track and the switch-tongue. The electromagnet is supportedin its box in any suitable manner by which the one member will berigidly held in position to permit the other to swing on the hinge orjoint 23 between them. In the form of the device shown the supportingmeans consist of an upright bracket 4E0, supporting Serial No. 160,845.(No model.)

a sleeve or strap &1, encircling the member 21. Any other means may beemployed for rigidly supporting this one member of the electromagnetwithout departing from the principles of our invention. The lever 50,fulcrumed at 51 on the bracket 52, supported from the lixed member 21,is adapted to be moved on said fulcrum by reason of the fact that it isalso hinged at 53 to the other member, 22, of the electromagnet. On itsunder side the switch-tongue 12 is provided with a recess 12, adapted toreceive the upper end of this lever 50, whereby when the lever is swungupon the fulcrum 51 the switch-tongue is moved horizontally and causedto be swung upon its own pivot 13.

The means employed to vibrate or swing the lever 51 is the energizing ofthe two members 21 and 22 of the magnet 20 by causing the electriccurrent to be passed through them. This brings the faces 21 and 22 ofthe two members of the magnet-core into the same magnetic tield, andconsequently attracts the hinged member 22 and causes it .to swing fromthe position shown in Fig. 4 to that shown in Fig. 5.

The means which we have shown to close the circuit passing through theelectromagnet, and thus to energize it to operate the switchtonguelever, form no part of our invention, and other and equivalent devicesmay be substituted without departing from our immediate invention, whichhas to do entirely with the switch-operating mechanism.

It is obvious that the switch 60, which is shown open in Fig. 4 andclosed in Fig. 5, could be operated manually from a switchtower or otherconvenient location of a switch operator. \Ve have illustrated, however,in Fig. 1 a means whereby the motorman on a moving car may operate it.In this view and in Fig. 2, is a trolley-wire from the source of power,and 71 is a trolley-wheel, and 72 the trolley-pole, all arranged in theusual manner. 71 is an additional trolley-wheel mounted on the pole 72and insulated from the wheel 71. is a conductor leading down from themain trolley-wheel 71 to the rheostat on the car, and 80 is a conductorleading down the trolley-pole from the wheel 71 to a switch-stud 81 onthe car. 70 is an additional trolley-wire hung alongside of and parallelwith the main wire 70 and insulated therefrom, and a conductor 7Oconnects it with one end of the coils of the electromagnet 20, theotherend of said coils being connected with a conductor 100, which isgrounded or otherwise connected with the main trolleywire 7 O. 82 is aswitch on the car connected up with conductor 80, so that when it isswung over into contact with the stud 81 it completes the circuitthrough the main wire 70, wheel 71, conductor 80, switch 82, stud 81,conductor 80", wheel 71, wire 7 0 conductor 70, the magnet, and theconductor 100, energizing the magnet, causing it to move from theposition of Fig. 1 to that of Fig. 5 and to operate the switch-lever andmove it from its normal position. \Vhen the switch is swung in theopposite direction away from the stud 81, the circuit is broken, themagnet is no longer energized, and the weight of the member 22 draws itback and downward and pulls the lever 50 with it, thus moving theswitch-tongue 12 back to its normal position.

What we claim as new is-- 1. In combination, a railway-switch tongue, alever engaging the tongue, an electromagnet having a core consisting oftwo members, one member of which is arranged to serve as a weight tohold the lever and tongue in their normal positions, and means forlifting the weight and thereby moving the lever and switch-tongue out oftheir normal positions, said means comprising the other member of thecore and means for energizing both members of the electromagnet.

2. In combination, a railway-switch tongue,

a lever engaging the tongue, an electromagnet having a core consistingof two members, one member of which is arranged to serve as a weight tohold the lever and tongue in their normal positions, and means forlifting the weight and thereby moving the lever and switch-tongue out oftheir normal positions, said means comprising the other member of thecore and a conducting-wire wound around the two members, and a suitablesource of electricity whereby, when both members of the electromagnetare energized thereby, the member serving as the weight is attractedtoward the other member of the magnetto move the switch-tongue and whenthe energizing ceases the weight drops back to its normal position.

3. In combination, a switch-tongue, a metallic weight consisting of acore of an electromagnet, means intermediate the tongue and the weightwhereby the tongue is normally held in a certain position through theforce of the weight, an electromagnet fixed in juxtaposition to theweight, and means for energizing the electromagnet to attract the weightand move the. switch-tongue and to permit the weight to force the tongueback into its former position when the energizing ceases.

WVitness our hands this 23d day of May, 1903, at Cleveland, in thecounty of Cuyahoga and State of Ohio.

JAMES C. KELLER. OTTO F. KADOW.

WVitnesses:

A. F. Hnss, W. J. LUCAS.

